biology questions

Science Bowl Questions Biology, Set 2

1.Multiple Choice: The adult human of average age and size has approximately how many quarts of blood? Is it:

a)4

b)6

c)8

d)10

2.Multiple Choice: Once the erythrocytes enter the blood in humans, it is estimated that they have an average lifetime of how many days. Is it:

a)10 days

b)120 days

c)200 days

d)360 days

3.Multiple Choice: Of the following, which mechanisms are important in the death of erythrocytes in human blood? Is it

a)phagocytosis (pron: fag-eh-seh-toe-sis)

b)hemolysis

c)mechanical damage

d)all of the above

4.Multiple Choice: Surplus red blood cells, needed to meet an emergency, are MAINLY stored in what organ of the human body? Is it the:

a)pancreas

b)spleen

c)liver

d)kidneys

5.Multiple Choice: When a human donor gives a pint of blood, it usually requires how many weeks for the body RESERVE of red corpuscles to be replaced? Is it:

a)1 week

b)3 weeks

c)7 weeks

d)21 weeks

6.Short Answer: There are three substances found in human blood which carry oxygen and which begin with the letter "H". Name two of these substances.

7.Multiple Choice: The several types of white blood cells are sometime collectively referred to as:

a)erythrocytes (pron: eh-rith-row-cites)

b)leukocytes (pron: lew-kah-cites)

c)erythroblasts (pron: eh-rith-rah-blast)

d)thrombocytes (pron: throm-bow-cites)

8.Multiple Choice: The condition in which there is a DECREASE in the number of white blood cells in humans is known as:

a)leukocytosis (pron: lew-kO-sigh-toe-sis)

b)leukopenia (pron: lew-kO-pea-nee-ah)

c)leukemia (pron: lew-kee-me-ah)

d)leukohyperia (pron: lew-kO-high-per-e-ah)

9.Multiple Choice: The smallest of the FORMED elements of the blood are the:

a)white cells

b)red cells

c)platelets

d)erythrocytes

10.Multiple Choice: Which of the following statements concerning platelets is INCORRECT. Platelets:

a)contain DNA

b)are roughly disk-shaped

c)have little ability to synthesize proteins

d)are between 1/2 and 1/3 the diameter of the red cell

11.Short Answer: What is the primary function of the platelets in huma blood?

12.Multiple Choice: When a wound occurs in humans, the platelets in the blood activate a substance which starts the clotting process. The substance which starts the clotting is:

a)adenosine (pron: ah-den-ah-seen)

b)histamine

c)lecithin (pron: less-ah-thin)

d)thrombin

13.Multiple Choice: When looking at the cross section of the human tibia, one finds the RED marrow in the:

a)medullary cavity

b)cancellous bone

c)periosteum

d)epiphysis

14.Multiple Choice: Lengthening of long bones in humans occurs in a particular area of the bone. This area is called the:

a)medullary canal

b)cancellous bone

c)periosteum (pron: per-E-ahs-tee-em)

d)epiphysis (pron: eh-pif-eh-sis)

15.Multiple Choice: The part of the human brain which is an important relay station for the sensory impulses and also is the origin of many of the involuntary acts of the eye such as the narrowing of the pupil in bright light is the:

a)hypothalamus

b)midbrain

c)corpus callosum

d)cerebellum

16.Multiple Choice: In the human brain, body temperature, metabolism, heart rate, sexual development, sleep and the body's use of fat and water are influenced by this region of the brain. This region of the brain is the:

a)hypothalamus

b)midbrain

c)corpus callosum

d)cerebellum

17.Multiple Choice: In which cerebral lobes is the speech center located? Is it the:

a)frontal

b)parietal

c)temporal

d)occipital

18.Multiple Choice: In most axons, the myelin sheath is interrupted at intervals of about 1 millimeter or more. These interruptions are called the:

a)glial

b)nodes of Ranvier (pron: ron-vee-ay)

c)collaterals

d)nodes of Babinet

19.Short Answer: Mosses and liverworts comprise this subdivision of plants. Name this plant subdivision.

20.Short Answer: This disease, caused by infection with the gram-negative Yersinia pestis, is transmittedby fleas from rats to humans What is the more common name for this disease?

21.Short Answer: In the mammalian body, this element plays many important roles. Try to identify thiselement with the fewest number of clues. This element is required to insure the integrity andpermeability of cell membranes, to regulate nerve and muscle excitability, to help maintain normalmuscular contraction, and to assure cardiac rhythmicity. It also plays a essential role in several of theenzymatic steps involved in blood coagulation and is the most important element of bone salt. Namethis element.

22.Multiple Choice: What eight-letter name starting with the letter "O" is given to that branch of medical science concerned with the study of tumors?

23.Short Answer: In the more highly developed animals, such as humans this gas is used to regulate the activity of the heart, the blood vessels, and the respiratory system. WORKING MUSCLES PRODUCE A LARGE AMOUNT OF THI SUBSTANCE. Narcosis due to this gas is characterized by mental disturbances which can include confusion, headache, low blood pressure and hypothermia. Name this gas.

24.Multiple Choice: Cariology is the study of the:

a)human heart

b)tooth decay

c)kidneys

d)liver

25.Short Answer: The larval form of butterflies and moths is more commonly known as what?

26.Short Answer: Name the sac-like, blind pouch of the large intestine, situated below the level of the junction of the small intestine into the side of the large intestine. At the lower portion of this pouch one finds the appendix.

27.Multiple Choice: During the final stage of cell division, the mitotic apparatus disappears, the

chromosomes become attenuated, the centrioles duplicate and split, the nuclear membrane becomes

reconstituted and the nucleolus reappears. This phase of cell division is known as:

a)prophase (pron: prO-phase)

b)metaphase

c)anaphase

d)telophase

28. Multiple Choice: In cell division, the phase following the metaphas is known as:

a)prophase

b)anaphase

c)telophase

d)extophase

29.Short Answer: All cells of an organism find their lineage from a single fertilized cell. This single fertilized cell is called what?

30.Multiple Choice: Name the clear watery liquid that surrounds the brain and spinal cord and fills the four cavities or ventricles of the brain.

31.Multiple Choice: The order of insects which includes beetles is known as:

a)Coleoptera (pron: kO-lee-op-teh-rah)

b)Orthoptera (pron: or-tho-op-teh-rah)

c)Hymenoptera

d)Diptera (pron: dip-teh-rah)

32.Multiple Choice: This major protein component of connective tissue in mammals comprises most of the organic matter of skin, tendons, bones, and teeth, and occurs as fibrous inclusions in most other body structures. Is this material:

a)elastin

b)collagen

c)fatty acids

d)keratin

33.Multiple Choice: Sickle cell anemia and Huntington's chorea are both:

a)virus-related diseases

b)bacteria-related diseases

c)congenital disorders

d)none of the above

34.Multiple Choice: In most species of Paramecium there are how many contractile vacuoles? Is it:

a)one

b)two

c)three

d)four

35.Multiple Choice: The major fibrous proteins are:

a)peptone and edestin

b)glutelin and leucine

c)valine and lysine

d)myosin and actin

36.Short Answer: Name the outer portion of a stem or root, bounded externally by the epidermis, and internally by the cells of the pericycle.

37.Multiple Choice: Costal cartilage:

a)attach the ribs to the sternum

b)cover the ends of the femur

c)is found in the pinna of the ear

d)forms the intervertebral disks of the backbone

38.Multiple Choice: From which grandparent or grandparents did you inherit your mitochondria?

Is it your:

a)mother's parents

b)paternal grandfather

c)grand mothers

d)maternal grandmother

39.Multiple Choice: Which of the following are NOT part of a neuron?

a)synapse

b)axon

c)Nissl bodies

d)dendrite

40.Multiple Choice: The resting potential of a neuron is dependent on what two ions?

a)lead and calcium ions

b)calcium and phosphate ions

c)sodium and potassium ions

d)potassium and phosphate ions

41.Multiple Choice: Which of the following is NOT a type of neuron?

a)sensory

b)motor

c)association

d)stimulatory

42.Multiple Choice: Melatonin (pron: mel-eh-toe-nin) is produced by the:

a) skin

b)pineal gland

c)liver

d)pituitary gland

43.Multiple Choice: Which of the following statements is TRUE of insulin? Is it:

a)secreted by the pancreas

b)a protein

c)involved in the metabolism of glucose

d)all of the above

44.Multiple Choice: Select the hormone INCORRECTLY paired with its target.

a)TSH - thyroid gland

b)ACTH - anterior pituitary

c)LH - ovary or testis

d)MSH - melanocytes (pron: meh-lan-o-cite)

45.Multiple Choice: Which of the following tissues secrete hormones?

a)pancreas

b)ovaries

c)gastro-intestinal tract

d)all of the above

46.Multiple Choice: Which of the following structures is directly attached to the ovary?

a)oviduct

b)uterus

c)suspensory ligaments

d)vagina

47.Multiple Choice: Fertilization of the ovum by the sperm usually occurs in the:

a)oviduct

b)vagina

c)uterus

d)ovary

48.Multiple Choice: The corpeus luteum secretes:

a)HCG

b)LH

c)FSH

d)progesterone

49.Multiple Choice: Which of the following does sperm NOT travel through?

a)ureter

b)urethra

c)vas deferens

d)epididymus

50.Multiple Choice: The placenta in humans is derived from the:

a)embryo only

b)uterus only

c)endometrium and embryo

d)none of the above

51.Multiple Choice: The number of mature gametes resulting from meiosis in the female is:

a)1

b)2

c)3

d)4

52.Multiple Choice: Synapsis and crossing over of chromosomes occurs in which phases of meiosis?

a)Interphase

b)Prophase

c)Meterphase

d)Teleophase

53.Multiple Choice: A layer of dead skin cells is found in the:

a)subcutaneous tissue

b)dermis

c)epidermis

d)no dead cells are in the skin

54.Multiple Choice: Glial (pron: glee-el) cells are found in the:

a)muscular system

b)digestive system

c)endocrine system (pron: en-de-kren)

d) nervous system

55.Multiple Choice: Myelin sheaths are found:

a)surrounding tendons

b)covering the brain

c)covering muscles

d)around axons of neurons

56.Multiple Choice: Which of the following is an INCORRECT statement about the parasympathetic system?

a)It increases digestive action.

b)It is the fight or flight system.

c)slows breathing rate

d)establishes resting state

57.Multiple Choice: Which of the following is NOT a component of the human axial skeleton?

a)sternum

b)vertebral column

c)tarsals

d)skull

58.Multiple Choice: Phalanges are found in the:

a)feet

b)skull

c)hip

d)chest

59.Multiple Choice: The phase of contraction of a muscle occurs when:

a)tropomyosin binds and releases actin

b)myosin binds and releases actin

c)actin binds and releases myosin

d)none of the above

60.Multiple Choice: Select the INCORRECT statement concerning the muscular system.

a)Bones contact other bones at joints.

b)Flexors decrease the angle of a joint.

c)Adductors move a limb away from the midline.

d)Tendons attach muscle to bone.

61.Multiple Choice: Which type of muscle is a syncytium (pron: sin-sish-E-um)?

a)skeletal

b)cardiac

c)smooth

d)all of the above

62.Multiple Choice: When the potential difference across a membrane of a neuron equals the threshold, what results?

a)movement of the membrane

b)action potential

c)relaxation

d)contraction

63.Multiple Choice: What ions determine the resting potential of a nerve?

a)sodium and calcium

b)calcium and copper

c)potassium and calcium

d)sodium and potassium

64.Multiple Choice: Which structure does NOT play a part in the motion of cells?

a)microvilli

b)cilia

c)flagella

d)pseudopodia

65.Multiple Choice: Bacteriophage (pron: back-teer-e-o-faj) are:

a)bacteria

b)bacteria precursors

c)viruses

d)agents which cause the production of bacteria

66.Multiple Choice: Which of the following is NOT a mode of genetic exchange within a bacterial

population?

a)conjugation

b)transduction

c)transformation

d)translation

67.Multiple Choice: The blastula develops into the:

a) gastrula

b)morula

c)endoderm

d)zygote

68.Multiple Choice: Tissue differentiation begins at which stage?

a)zygote

b)morula

c)blastula

d)gastrula

69.Multiple Choice: The nervous system develops from which germ layer?

a)ectoderm

b)mesoderm

c)endoderm

d)none of the above

70.Multiple Choice: During inspiration, the diaphragm moves:

a)down by contraction

b)down by relaxation

c)up by contraction

d)up by relaxation

71.Multiple Choice: The valve between the right ventricle and the pulmonary artery is the:

a)mitral valve

b)semilunar valve

c)bicuspid valve

d)tricuspid valve

72.Multiple Choice: Which of the following is NOT a function of the kidney?

a)excretion of urea

b)regulation of fluids and electrolytes

c)elimination of toxic substances

d)defecation

73.Multiple Choice: When CO2 (carbon dioxide) is dissolved in water, it yields a solution that:

a)has acidic properties

b)has basic properties

c)is neutral

74.Multiple Choice: Digestion of carbohydrates begins where?

a)small intestines

b)colon

c)mouth

d)stomach

75.Multiple Choice: Digestion of PROTEINS begins in which of the following human organs?

a)small intestines

b)colon

c)mouth

d)stomach

76.Multiple Choice: Bile has what function in digestion?

a)emulsify lipids

b)digest proteins

c)gluconeogenesis

d)digest carbohydrates

77.Multiple Choice: Of the following, which is a basic need of all living things?

a)oxygen gas

b)light

c)hydrogen gas

d)water

78.Multiple Choice: A botanist is most likely to study:

a)Monerans

b)Protistans (pron: pro-tis-tans)

c)Fungi

d)Virions

79.Multiple Choice: A virus must do what to reproduce?

a)form a latent virus

b)undergo transformation

c)infect a cell

d)conjugate

80.Multiple Choice: The chromosomes of a eukaryotic cell are located i the:

a)mitochondria (pron: my-toe-kon-dria)

b)nucleus

c)ribosome

d) endoplasma

81.Multiple Choice: Which of the following is an example of symbiosis?

a)lichen

b)slime mold

c)amoeba

d)moss

82.Multiple Choice: Oxygen enters the body of a grasshopper through:

a)gills

b)spinnerets

c)spiracles

d)book lungs

83.Multiple Choice: A heart with a single atrium and single ventricle is a characteristic of adult:

a)amphibians

b)arthropods

c)birds

d)fish

84.Short Answer: Name the four main excretory organs identified in man.

85.Multiple Choice: The physical appearance and properties of an organism which is the expression of the

genetic makeup is called the:

a)phenotype

b)pangenesis

c)parental trait

d)genotype

86.Short Answer: How many nucleotides make up a codon (pron: kO-don)?

87.Multiple Choice: The complex of sugar polymers and proteins which are patchily distributed on the plasma membranes of animal cells is called

a)cellulose

b)chitin

c)glyocalyx

d)cytoskeleton

88.Short Answer: During cellular respiration, glucose is oxidized completely to what two compounds?

89.Multiple Choice: Organisms with cells containing two sets of parental chromosomes are called:

a)diploid

b)bisomal

c)haploid

d)autosomal

90.Multiple Choice: The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called:

a)linkage

b)mutation

c)pleitropy (pron: ply-ah-tropy)

d)epistasis (pron: eh-pis-te-sis)

91.Multiple Choice: For which of the following creatures is fat the greatest percentage of body weight?

a)termite

b)blue whale

c)zebra

d)female lion

92.Multiple Choice: Which is false regarding freshwater fish?

a)their blood is hypertonic to their environment

b)they often actively take up salt

c)they excrete urine hypotonic to the blood

d)their gills actively excrete salts

93.Multiple Choice: Neutral fats, oils and waxes may be classified as:

a)lipids

b)carbohydrates

c)proteins

d)none of the above

94.Short Answer: Name three basic morphologies of bacteria.

95.Short Answer: What is the name of the 6 carbon monosaccharide that is the universal

cellular fuel of plants and animals?

96.Multiple Choice: During which phase of the cell cycle are normal components of the

cell synthesized and assembled?

a)the M phase

b)the G1 phase

c)the S phase

d)the G2 phase

97.Multiple Choice: Which of the following is NOT a characteristic shared by most of the

members of the kingdom plantae?

a)they are multicellular

b)they are nonmotile

c)they possess bilateral symmetry

d)there is an alternation of haploid and diploid generations

98.Short Answer: If an individual has two dissimilar alleles for a trait, with regard to that trait he is said to be:

99.Short Answer: How many chromosomes per cell does a Down's Syndrome (trisomy 21) victim have?

100.Short Answer: If a male who is heterozygous for an autosomal trait mates with a female who is

also heterozygous for that trait, what percent of their offspring are likely to be heterozygous for this

trait as well?

1. ANSWER: B -- 6

2. ANSWER: B -- 120 Days

3. ANSWER: D -- all of the above

4. ANSWER: B spleen

5. ANSWER: C -- 7 weeks

6. ANSWER: Hemoglobin, Hemocyanin, Hemerythrin

7. ANSWER: B -- leukocytes

8. ANSWER: B -- leukopenia

9. ANSWER: C platelets

10. ANSWER: A -- contain DNA

11. ANSWER: clotting or blocking leaks from blood vessels

12. ANSWER: D -- Thrombin

13. ANSWER: A -- medullary cavity

14. ANSWER: D Epiphysis

15. ANSWER: B -- Midbrain

16. ANSWER: A -- hypothalamus

17. ANSWER: A -- frontal

18. ANSWER: B -- Nodes of Ranvier

19. ANSWER: Bryophytes (pron: bry-eh-fites) or Bryophyta

20. ANSWER: Bubonic Plague or Black Death

21. ANSWER: Calcium

22. ANSWER: Oncology

23. ANSWER: Carbon Dioxide or CO2

24. ANSWER: B -- Tooth Decay

25. ANSWER: caterpillar

26. ANSWER: Cecum or Caecum

27. ANSWER: D -- Telophase

28. ANSWER: B -- Anaphase

29. ANSWER: Zygote

30. ANSWER: Cerebrospinal Fluid

31. ANSWER: A -- Coleoptera

32. ANSWER: B -- collagen

33. ANSWER: C -- Congenital Disorders

34. ANSWER: B Two

35. ANSWER: D -- Myosin and Actin

36. ANSWER: A -- Attach the ribs to the sternum

38. ANSWER: D -- maternal grandmother

39. ANSWER: A SYNAPSE

40. ANSWER: C -- sodium and potassium ions

41. ANSWER: D -- STIMULATORY

42. ANSWER: B -- PINEAL GLAND

43. ANSWER: D -- ALL OF THE ABOVE

44. ANSWER: D -- MSH MELANOCYTES

45. ANSWER: D -- ALL OF THE ABOVE

46. ANSWER: C -- SUSPENSORY LIGAMENTS

47. ANSWER: A -- OVIDUCT

48. ANSWER: D -- PROGESTERONE

49. ANSWER: A URETER

50. ANSWER: C -- ENDOMETRIUM AND EMBRYO

51. ANSWER: A -- 1

52. ANSWER: B -- PROPHASE

53. ANSWER: C -- EPIDERMIS

54. ANSWER: D -- NERVOUS SYSTEM

55. ANSWER: D -- AROUND AXONS OF NEURONS

56. ANSWER: B -- IT IS THE FIGHT OR FLIGHT SYSTEM.

57. ANSWER: C -- TARSALS

58. ANSWER: A FEET

59. ANSWER: B -- MYOSIN BINDS AND RELEASES ACTIN

60. ANSWER: C -- ADDUCTORS MOVE A LIMB AWAY FORM THE MIDLINE.

61. ANSWER: A -- SKELETAL

62. ANSWER: B -- ACTION POTENTIAL

63. ANSWER: D -- SODIUM AND POTASSIUM

64. ANSWER: A -- MICROVILLI

65. ANSWER: C -- VIRUSES

66. ANSWER: D -- TRANSLATION

67. ANSWER: A -- GASTRULA

68. ANSWER: D GASTRULA

69. ANSWER: A -- ECTODERM

70. ANSWER: A -- DOWN BY CONTRACTION

71. ANSWER: A -- SEMILUNAR VALVE

72. ANSWER: D -- DEFECATION

73. ANSWER: A -- HAS ACIDIC PROPERTIES

74. ANSWER: C -- MOUTH

75. ANSWER: D -- STOMACH

76. ANSWER: A -- EMULSIFY LIPIDS

77. ANSWER: D -- WATER

78. ANSWER: C -- FUNGI

79. ANSWER: C -- INFECT A CELL

80. ANSWER: B -- NUCLEUS

81. ANSWER: A -- LICHEN

82. ANSWER: C -- SPIRACLES

83. ANSWER: D -- FISH

84. ANSWER: A -- PHENOTYPE

86. ANSWER: 3

87. ANSWER: C -- GLYOCALYX

88. ANSWER: A DIPLOID

90. ANSWER: D EPISTASIS

91. ANSWER: B -- BLUE WHALE

92. ANSWER: D -- THEIR GILLS ACTIVELY EXCRETE SALTS

93. ANSWER: A -- LIPIDS

94. ANSWER: (1) COCCI (COCCUS), (2) BACILLI (BACILLUS) or ROD, (3) SPIROCHETES or SPIRILLA or SPIRAL

95. ANSWER: GLUCOSE (DEXTROSE)

96. ANSWER: B -- THE G1 PHASE

97. ANSWER: C -- THEY POSSESS BILATERAL SYMMETRY

98. ANSWER: HETEROZYGOUS

99. ANSWER: 47

100. ANSWER: 50%

Science Bowl Practice Questions

1.Multiple Choice: Which of the following describes the major difference between bryophytes

and tracheophytes (pron: tray-key-o-fites)?

a)tracheophytes can survive on land

b)tracheophytes have seeds inside fruits

c)tracheophytes can make their own food

d)tracheophytes have vessels to transport materials

2.Short Answer: Complete the sentence. The alternative forms of gene at the same locus on homologous chromosomes are called what?

3.Short Answer: The human pelvic girdle is composed of 3 fused bones on each side for

a total of 6 bones. Name the 3 fused bones.

4.Short Answer: What are rings of muscle which CLOSE body openings such as the lips

called?

5.Multiple Choice: The myofilaments of muscles consist primarily of two proteins. These two proteins are called:

a)actin and myosin

b)progesterone and testosterone

c)progesterone and estrogen

6.Short Answer: Is studies of the human body, what is used to describ a blood-filled sac formed by an outpouching in an arterial or venous wall?

7.Multiple Choice: What French scientist is considered the father of paleontology? Was it:

a)George Cuvier

b)Marquis de Condorcet

c)Jacque Tonnies

d)Auguste Compte

8.Multiple Choice: What Roman physician's studies of human anatomy based on lower animals served as the only text on the subject for nearly 1 centuries? Was it:

a)Cartrum

b)Polonius

c)Galen

d)Monterius

9.Multiple Choice: What percentage of the atmosphere consists of carbon dioxide? Is it approximately:

a).03% (read: three-hundredths of a percent)

b)1%

c)5%

d)7%

10.Short Answer: What process in all living things releases carbon dioxide as a waste product?

11.Short Answer: For convenience, living things are placed into variou groups. The taxonomic breakdown of living things consists of the following categories: Family, Class, Genus, Phylum, Order, Kingdom and Species. Give the order of these terms from least specific to most specific.

12.Short Answer: In biology, what is the word used to describe the appearance of an individual without regard to its hereditary constitution?

13.Multiple Choice: The chromosomes responsible for characteristics other than sex are known by which of the following terms?

a)ribosomes

b)lysosomes

c)autosomes

d)spermatocytes

14.Short Answer: What genetic term describes the situation when a part of a chromosome is broken off and lost?

15.Multiple Choice: Each of the following is a cell organelle except one. Which one of these is NOT a cell organelle? Is it

a)mitochondrion

b)lysosome

c)cytoplasm

d)endoplasmic reticulum

16.Multiple Choice: When a color blind man marries a woman pure for normal color vision, it is probable that one of the following situations may result. Is it probable that

a)all the children will be color blind

b)all the grandchildren will be color blind

c)only the sons will be colorblind

d)half the grandsons will be color blind

17.Multiple Choice: Which of the following are skin receptors in humans that are sensitive to heat? Are they:

a)end organs of Krause

b)Meissner's corpuscles

c)end organs of Ruffini

d)Pacinian corpuscles

18.Multiple Choice: Into which of the following acids is glucose broken down in the first stage of carbohydrate metabolism? Is it:

a)pyruvic acid (pie-rue-vick acid)

b)lactic acid

c)hydrochloric acid

d)citric acid

19.Multiple Choice: Hormones are composed from many classes of molecules. As far as our present knowledge extends, hormones are NOT found in which of the following categories of substances:

a)proteins

b)peptides

c)nucleic acids

d)steroids

20.Short Answer: What is the term given to a fatty acid that has more than one set of double bonds between carbons?

21.Multiple Choice: The process by which an amino acid loses its amino group is called:

a)hydration

b)deamination

c)oxidoamination

d)dehydration

22.Multiple Choice: In a plasma membrane, which of the following provides a general barrier to the movement of molecules?

a)lipids

b)proteins

c)carbohydrates

d)all of these

23.Multiple Choice: The name of the process by which oil glands in mammalian skins secrete oils is:

a)active transport

b)apocrine secretion

c)holocrine secretion

d)osmosis

24.Multiple Choice: An individual with three X chromosomes is likely t be:

a)a clinically normal female

b)an abnormal female

c)a Turner's individual

d)a Kleinfelter's individual

25.Short Answer: Who is considered the father of Taxonomy?

26.Multiple Choice: In the first stage of photosynthesis, light energy is used to:

a)move water molecules

b)denature chlorophyll

c)split water

d)produce carbohydrates

27.Multiple Choice: One-celled algae enclosed in minute two-part silic shells are called:

a)dinoflagellates (pron: die-no-flaj-el-ates)

b)coelenterates (pron: sell-en-ter-ates)

c)annelids

d)diatoms

28.Multiple Choice: Osmoregulation is concerned with:

a)excretion

b)ionic regulation

c)control of the body's water content

d)carbon dioxide regulation

29.Multiple Choice: Which of the following is not an arachnid?

a)lobster

b)scorpion

c)black widow spider

d)tick

30.Multiple Choice: Which of the following is not found in blood?

a)fibrinogen

b)glucose

c)urea

d)glycogen

31.Multiple Choice: Proof that plants can grow and reproduce using onl inorganic nutrients comes from the study of:

a)phototrophic nutrition

b)mycorrhiza

c)hydroponics

d)humus

32.Multiple Choice: Water molecules enter plant epidermal cells by:

a)osmosis

b)active transport

c)translocation

d)transpiration

33.Short Answer: What molecule is the energy source for virtually all of the work done by the cell?

34.Multiple Choice: Which of the following diseases has been eradicate from the world?

a)cholera

b)smallpox

c)diphtheria

d)poliomyelitis

35.Multiple Choice: We believe the beginnings of life on earth took place in the:

a)air

b)land masses

c)shallow oceans

d)glaciers

36.Multiple Choice: Each antibody molecule is made up of how many PAIR of polypeptide chains, joined together by disulfide bonds.

a)1

b)2

c)3

d)4

37.Multiple Choice: The immune system normally discriminates between which types of antigens.

a)B and T cells

b)self and non-self

c)humoral and cell-mediated

d)primary and secondary

38.Short Answer: Proteins that cause reactions to proceed more rapidly and lower the energy of activation are called.

39.Multiple Choice: What percent of the total radiant energy received by a plant is converted to chemical energy?

a)less than 2

b)10

c)50

d)75

40.Multiple Choice: Genes are able to control a cell's fate by determining the synthesis of:

a) other genes

b)enzymes

c)carbohydrates

d)fat

41.Multiple Choice: Resolution by any microscope is ULTIMATELY limited by the:

a)curvature of the lenses

b)wavelength of the light

c)light intensity

d)lens aberrations

42.Multiple Choice: Humans cannot digest cellulose because:

a)it does not contain sugars

b)it is made up of disaccharides

c)it is made up of monosaccharides

d)humans lack the proper enzymes

43.Multiple Choice: Cholesterol, testosterone, and estrogen are all examples of:

a)proteins

b)steroids

c)nucleic acids

d)alcohols

44.Short Answer: What is sometimes called animal starch?

45.Short Answer: How many PAIRS of nerves leave the vertebrate brain?

46.Short Answer; The vertebrate eyeball is bounded anteriorly by what convex, transparent object?

47.Short Answer: What are the names given to the basic subunits of a nucleic acid.

48.Short Answer: What is the term given to enzymes whose action is modulated by binding of a molecule to a site other than the active site?

49.Multiple Choice: The muscle attachment to the bone of lesser movement is called the muscle's:

a)insertion

b)head

c)origin

d)tail

50.Short Answer: DNA present in a structural gene that does not seem to have a specific coding function is known as what?

51.Multiple Choice: The organic portion of bone consists of which one of the following proteins.

a)fibrin

b)collagen

c)actin

d)myosin

52.Multiple Choice: Octopus and squid belong to the class of molluscs known as:

a)cephalopoda (pron: sef-eh-lah-pod-ah)

b)bivalvia

c)gastropoda (pron: gas-tro-pod-ah)

d)polyplacophora (pron: poly-pla-so-for-ah)

53.Short Answer: The name given to a structure present in angiosperms but lacking in gymnosperms is?

54.Multiple Choice: In mammals, the primary function of the loop of Henle is:

a)reabsorption of water

b)water secretion

c)ammonia secretion

d)bicarbonate reabsorption

55.Short Answer: What is the name of the phenomenon that occurs when tissue culture is infected with one type of virus that causes the culture to resist infection by a second type of virus?

56.Short Answer: What are gas bubbles which form within plant cells o in blood known as?

57.Short Answer: What are the water conducting cells in non-flowering vascular plants know as?

58.Short Answer: On a dry day, water diffuses out of the intercellula spaces of the leaf through what part

of the leaf?

59.Short Answer: A clogging of the bile duct interferes with the digestion of what category of food?

60.Short Answer: What is the name given to the jellylike substance filling the chamber behind the lens of the human eye?

61.Short Answer: The Erythrocytes of mammals lack what?

62.Multiple Choice: The name of the ductless glands which secrete thei product into the circulatory system are:

a)exocrine (pron: ek-seh-kren)

b)apocrine (pron: ap-eh-kren)

c)holocrine (pron: hoe-leh-kren)

d) endocrine (pron: en-deh-kren)

63.Multiple Choice: In the first stage of photosynthesis, light energy splits water molecules leaving a by product which is released. This byproduct is:

a)hydrogen

b)carbon dioxide

c)oxygen

d)methane

64.Multiple Choice: The bacteria which cause dental cavities in humans break down sugars, releasing what chemical, that causes tooth destruction?

a)acids

b)bases

c)enzymes

d)monosaccharides

65.Multiple Choice: Blood platelets are:

a)cytoplasmic fragments

b)free nuclei

c)a kind of red cell

d)found only during clot formation

66.Multiple Choice: Oxidation of fats and carbohydrates within a cell would be an example of:

a)anabolism

b)catabolism

c)biosynthesis

d)none of the above

67.Multiple Choice: The muscle which is under involuntary control is:

a)striated

b)smooth

c)skeletal

68.Multiple Choice: The secondary pacemaker of the heart is known as the:

a)AV node

b)SA node

c)Purkinje Bundle

d)None of the above

69.Multiple Choice: A pyrogen is a substance released during inflammation that aids in causing:

a)swelling

b)redness

c)fever

d)pain

70.Multiple Choice: Which of the following living creatures is most likely to have evolved from the trilobite?

a)millipede

b)sea star

c)sea anemone

d)whelk

71.Multiple Choice: A lake which has high nutrient availability is:

a)oligotrophic (pron: all-i-go-tro-fik)

b)eutrophic (pron: you-tro-fik)

c)mesotrophic (pron: mez-eh-tro-fik)

72.Multiple Choice: The hormone causing growth of the endometrium

a)androgen (pron: ann-drah-jen)

b)leutenizing hormone (pron: lew-ten-I-zing)

c)estrogen

d)prolactin

73.Multiple Choice: Nitrogen fixation is accomplished by:

a)plants

b)bacteria

c)animals

d)viruses

74.Multiple Choice: The vesicles formed via the process known as phagocytosis are called:

a)lysosomes (pron: lye-sah-somes: somes rhymes with homes)

b)Golgi apparatus

c)food vacuoles

d)mitochondria (pron: my-toe-chon-dria)

75.Multiple Choice: Of the following three substances, which provides the LEAST source of energy for the body?

a)protein

b)fats

c)carbohydrates

76.Multiple Choice: Type A blood contains isohemaglutinins against which red cells?

a)type A

b)type B

c)type O

d)type G

77.Multiple Choice: Which cell count tends to be elevated when an individual has an allergy or parasitic worms?

a)red blood cells

b)erythrocyte

c)eosinophil (pron: e-o-sin-o-fill)

d)platelet

78.Multiple Choice: Veins tend to have the following except:

a)valves for unidirectional flow

b)very elastic walls

c)thin walls

d)increasing size toward the heart

79.Multiple Choice: Gallstones are most often the result of:

a)gallbladder irritation

b)eating cherries and swallowing the pits

c)precipitation of cholesterol

d)accumulated bile pigment

80.Multiple Choice: The loss of water by plants in the form of vapor i called:

a)evaporation

b)transpiration

c)evapotranspiration

d)vaporization

81.Multiple Choice: Sponges are included in which of the following phyla?

a)Cnidaria (pron: nid-air-e-ah)

b)Porifera

c)Reptilia

d)Foraminifera (pron: feh-ram-eh-nif-eh-rah)

82.Short Answer: Name the tendon in humans which attaches the gastrocnemius and soleus muscles to the calcaneum or heel bone.

83.Short Answer: What is the normal pH of human blood?

84.Short Answer: Myosin is one of two proteins that make up the myofibrils of striated muscles. Name the other protein.

85.Short Answer: Part of the endocrine system in humans, these two glands are small bodies located at the upper end of each kidney. While these glands perform a variety of functions, two of the most important are (1) control of the body's adjustment to an upright posture, and (2) accommodation of the body to

intermittent rather than constant intake of food. Name these glands.

86.Short Answer: Name the gelatin-like substance which is prepared for various species of red algae growing in Asiatic waters. The prepared product appears in the form of cakes, coarse granules, long shreds or in thin sheets. It is used extensively alone or in combination with various nutritive substances,as a medium for culturing bacteria and various fungi

87.Short Answer: What is a partial or total loss of memory of a temporary or permanent nature known as?

88.Multiple Choice: All of the following are characteristic of amphibians EXCEPT:

a)moist skin

b)the absence of scales

c)metamorphosis

d)live in salt water

89.Short Answer: What term is used to describe the procedure whereby a catheter is inserted into an individual's heart, a radio-opaque medium is injected, and x-ray images are made. The procedure is used to locate where arteries are blocked and the degree to which the blockage has developed.

90.Multiple Choice: Which of the following joints is formed by the articulation of the tibia, the malleolus of the fibula, and the convex surface of the talus. Is it the:

a)ankle

b)knee

c)elbow

d)wrist

91.Multiple Choice: A plant which completes its life cycle, from seed to seed, in a single growing season is known as:

a)perennial

b)cyclic

c)annual

d)circadian

92.Multiple Choice: In flowers the terminal part of a stamen, containing the pollen sacs is known as the:

a)anther

b)style

c)filament

d)pistil

93.Multiple Choice: The process of nuclear reorganization in protozoa in which the nucleus divides, each half undergoes a maturation, and the tw persisting functional nuclei reunite is known as:

a)autogamy

b)autolysis

c)autoregression

d)autotomy

94.Multiple Choice: Of the following, which is NOT a bacterial disease Is it:

a)strep throat

b)herpes

c)Bubonic Plague

d) Diphtheria

95.Multiple Choice: Of the following, which is NOT a viral disease? Is it:

a)Hepatitis

b)Chicken Pox

c)Tuberculosis

d)Rabies

96.Multiple Choice: Most of the fungi commonly observed are members of this group of fungi, which includes toadstools, mushrooms and puffballs. This group of fungi is known as:

a)Phycomycetes (pron: fI-kO-my-seats)

b)Ascomycetes (pron: as-kO-my-seats)

c)Basidomycetes

d)Plyocetes (pron: ply-O-seats)

97.Multiple Choice: Truffles, morels and the many yeasts which are basic to fermentation processes belong to this group of fungi. These fung are known as:

a)Phycomycetes

b)Ascomycetes

c)Basidomycetes

d)Plyocetes

98.Multiple Choice: Many living organisms exhibit the unique property of producing visible light. What term is used to describe this phenomena?

99.Multiple Choice: Many living organisms exhibit the unique property of producing visible light. The compound that is oxidized with subsequent light emission is usually referred to as luciferin. What is the enzyme which catalyzes the reaction known as?

100.Multiple Choice: The muscle which RAISES a bird's wing is known as the:

a)Pectoralis major

b)pectoralis minor

c)soleus

d)gluteus maximus

ANSWER: D -- TRACANSWER: ALLELESHEOPHYTES HAVE VESSELS TO TRANSPORT MATERIALSANSWER: ALLELESANSWER: ILLIUM, ISCHIUM, and PUBISANSWER: SPHINCTERSANSWER: A -- ACTIN AND MYOSINANSWER: ANEURYSMANSWER: A -- GEORGE CUVIERANSWER: C -- GALENANSWER: A -- .03%ANSWER: RESPIRATION

ANSWER: KINGDOM, PHYLUM, CLASS, ORDER, FAMILY, GENUS, SPECIESANSWER: PHENOTYPE (pron: fee-no-type)ANSWER: C -- AUTOSOMESANSWER: CHROMOSOMAL DELETIONANSWER: C -- CYTOPLASMANSWER: D -- HALF THE GRANDSONS WILL BE COLOR BLINDANSWER: C -- END ORGANS OF RUFFINIANSWER: A -- PYRUVIC ACIDANSWER: C -- NUCLEIC ACIDSANSWER: POLYUNSATURATED

ANSWER: B DEAMINATIONANSWER: A LIPIDSANSWER: C -- HOLOCRINE SECRETIONANSWER: B -- AN ABNORMAL FEMALEANSWER: (CAROLUS) LINNAEUSANSWER: C -- SPLIT WATERANSWER: D DIATOMSANSWER: C -- CONTROL OF THE BODY'S WATER CONTENTANSWER: A -- LOBSTERANSWER: D -- GLYCOGEN

ANSWER: C HYDROPONICSANSWER: A OSMOSISANSWER: ATP (Adenosine Triphosphate)ANSWER: B -- SMALLPOXANSWER: C -- SHALLOW OCEANSANSWER: B 2ANSWER: B -- SELF AND NON-SELFANSWER: ENZYMESANSWER: A -- LESS THAN 2ANSWER: B -- ENZYMES

ANSWER: B -- WAVELENGTH OF THE LIGHTANSWER: D -- HUMANS LACK THE PROPER ENZYMESANSWER: B -- STEROIDSANSWER: GLYCOGENANSWER: 12ANSWER: CORNEAANSWER: MONONUCLEOTIDES or NUCLEOTIDESANSWER: ALLOSTERIC ENZYMESANSWER: C -- ORIGINANSWER: INTRON

ANSWER: B COLLAGENANSWER: A -- CEPHALOPODAANSWER: OVARY or OVULARYANSWER: A -- REABSORPTION OF WATERANSWER: VIRAL INTERFERENCE or INTERFERENCEANSWER: EMBOLISMANSWER: TRACHEIDSANSWER: STOMATAANSWER: FATS or LIPIDS or FAT SOLUBLE VITAMINSANSWER: vitreous body vitreous humor

ANSWER: nucleus or DNA or chromosomes or mitochondriaANSWER: D -- ENDOcrineANSWER: C -- oxygenANSWER: A -- acidsANSWER: A -- Cytoplasmic fragmentsANSWER: B -- CatabolismANSWER: B -- SMOOTHANSWER: A -- AV nodeANSWER: C -- feverANSWER: A millipede

ANSWER: B -- eutropHicANSWER: C -- estrogenANSWER: B -- bacteriaANSWER: C -- FOOD VACUOLESANSWER: A proteinsANSWER: A -- type AANSWER: C -- eosinophilANSWER: B -- very elastic wallsANSWER: C -- precipitation of cholesterolANSWER: C evapotranspiration

ANSWER: B -- PORIFERAANSWER: Achilles TendonANSWER: 7.4ANSWER: ActinANSWER: Adrenal GlandsANSWER: Agar-agar or just AgarANSWER: AmnesiaANSWER: D -- live in salt waterANSWER: Angiography or AngiogramANSWER: A -- Ankle

ANSWER: C AnnualANSWER: A -- AntherANSWER: A -- AutogamyANSWER: B -- herpesANSWER: C TuberculosisANSWER: C -- BasidomycetesANSWER: B -- AscomycetesANSWER: Bioluminescence or photoluminescenceANSWER: LuciferaseANSWER: B -- pectoralis minor

Science Bowl Practice Questions General

1.Multiple Choice: Pollination by birds is called:

w) autogamy

x) ornithophily

y) entomophily

z) anemophily

ANSWER: X -- ORNITHOPHILY

2.Short Answer: How many men have walked on the moon?

ANSWER: TWELVE

3.Multiple Choice: The fastest-running terrestrial animal is:

w) cheetah

x) lion

y) man

z) jaguar

ANSWER: W -- CHEETAH

4.Short Answer: What wonder drug was used for three years by the Army and Navy before becoming available to the general public in 1944?

ANSWER: PENICILLIN

5.Short Answer: What is the name given to the process, discovered by Goodyear, of adding sulfur to heated rubber?

ANSWER: VULCANIZATION

6.Short Answer: Which sea is the saltiest natural lake and is also at the lowest elevation on the face of the earth?

ANSWER: THE DEAD SEA

7.Multiple Choice: As you go down into a well, your weight:

w) increases slightly

x) decreases slightly

y) remains exactly the same

ANSWER: X -- DECREASES SLIGHTLY

8.Short ANSWER: A cloud at ground level is called what?

ANSWER: FOG

9.Short Answer: What invention in about 1450 A.D. revolutionized communication and the world?

ANSWER: THE PRINTING PRESS

10.Short Answer: What is the name for the new technology whereby a glass fiber carries as much information as hundreds of copper wires?

ANSWER: FIBER OPTICS

11.Short Answer: What mammal lays eggs? ANSWER: PLATYPUS

12.Short Answer: Linseed oil comes from what plant?

ANSWER: FLAX

13.Short Answer: What is the name of the largest terrestrial rodent, distinguished by its spiny covering?

ANSWER: PORCUPINE

14.Multiple Choice: The only species of cat that lives and hunts in groups is:

w) lion x) leopard y) jaguar z) cougar

ANSWER: W LION

15.Multiple Choice: The science of weights and measures is called:

w) metrology x) meteorology y) mineralogy z) morphology

ANSWER: W -- METROLOGY

16.Short Answer: What compound is a common component of air pollution, but is essential in the upper atmosphere to protect life on earth?

ANSWER: OZONE

17.Short Answer: What is osteoporosis?

ANSWER: IT IS LOSS OF CALCIUM FROM BONES

18.Multiple Choice: Yeast, used in making bread is a:

w) plant x) fungus y) bacteria z) seed

ANSWER: X -- FUNGUS

19.Multiple Choice: The Statue of Liberty is green because of:

w) green stone x) oxidized brass y) steel painted green z) oxidized copper

ANSWER: Z -- OXIDIZED COPPER

20.Short ANSWER: At what point are the Celsius and Fahrenheit scales equal?

ANSWER: -40 DEGREES

21.Multiple Choice: The word atom is from a Greek word meaning:

w) small x) indivisible y) unseen z) visible

ANSWER: X -- INDIVISIBLE

22.Short Answer: Name the famous mathematician/physicist who was born in the year Galileo died.

ANSWER: (ISAAC) NEWTON

23.Short Answer: What are the only places that dogs have sweat glands? ANSWER: NOSE AND PAWS

24.Short Answer: Linen is made from what plant? ANSWER: FLAX

25.Short Answer: What is arachnology?

ANSWER: STUDY OF ARACHNIDS (except: study of spiders or scorpions or relatives of spiders)

26.Short Answer: What is another name for the Paleolithic Age?

ANSWER: THE STONE AGE

27.Short Answer: What nocturnal animal group makes up one-fourth of all mammals species? ANSWER: BATS or CHIROPTERA

28.Short Answer: How many time zones are there on Earth?

ANSWER: TWENTY-FOUR

29.Short Answer: What land mammal holds the record for the greatest age?

ANSWER: MAN

30.Short Answer: What is the better known name for the deadly poison prussic acid? ANSWER: CYANIDE or HYDROGEN CYANIDE

31.Multiple Choice: Cystitis is the infection of which of the following?

w) liver x) urinary bladder y) pancreas z) lung

ANSWER: X -- URINARY BLADDER

32.Short Answer: What is a shark's skeleton made of?

ANSWER: CARTILAGE

33.Short Answer: What yellow metal is an alloy of copper and zinc?

ANSWER: BRASS

34.Short Answer: What is the subdivision in the Plant Kingdom comprising over 20,000 species of Mosses and Liverworts?

ANSWER: BRYOPHYTES

35.Short Answer: Automobile catalytic converters cause the carbon monoxide and hydrocarbons which result from incomplete combustion to be converted into what two substances?

ANSWER: CARBON DIOXIDE (CO2) AND WATER (H2O)

36.Short Answer: Used primarily in fertilizers, which element is never found free in nature even though it makes up about 2.5% of the earth's crust?

ANSWER: POTASSIUM

37.Multiple Choice: At room temperature, most elements are in which phase of matter?

w) solid x) liquid y) gas z) plasma

ANSWER: W -- SOLID

38.Short Answer: What is the name for steel alloyed with chromium?

ANSWER: STAINLESS STEEL

39.Short Answer: Table sugar, from sugar cane or beet, is what type of sugar?

ANSWER: SUCROSE or DISACCHARIDE or SACCHAROSE

40.Multiple Choice: The study of phenomena at very low temperatures is called:

w) heat transfer

x) morphology

y) crystallography

z) cryogenics

ANSWER: Z -- CRYOGENICS

41.Multiple Choice: The branch of medical science which is concerned with the study of disease as it affects a community of people is called:

w) epidemiology x) oncology y) paleontogy z) pathology

ANSWER: W EPIDEMIOLOGY

42.Short Answer: Name the first woman to travel in space.

ANSWER: (VALENTINA) TERESHKOVA

43.Multiple Choice: A type of plastic that is biodegradable has been in the news lately. The ingredient that makes it biodegradable is:

w) vegetable oil x) petroleum y) cornstarch z) leather

ANSWER: Y CORNSTARCH

44.Multiple Choice: If a metal can be drawn into wires relatively easily it is called:

w) malleable x) ductile y) extractive z) tactile

ANSWER: X -- DUCTILE

45.Short Answer: Occasionally, a bad cold will cause a decrease in a persons hearing ability. What is the name of the tube that becomes blocked to cause this problem?

ANSWER: EUSTACHIAN TUBE

46.Short Answer: Name the general type of mammal that gives birth to undeveloped young that are kept

in pouches.

ANSWER: MARSUPIAL

47.Multiple Choice: In which country was a method for making rust-resistant iron discovered in the fifth

century B.C.?

w) Sumeria x) Egypt y) India z) Babylon

ANSWER: Y INDIA

Science Bowl Practice Questions Earth Science

1. Short Answer: Biosphere describes the earth realm where life occurs What describes the entire solid earth realm and is composed of mineral matter?

ANSWER: LITHOSPHERE

2. Multiple Choice: Which of the following energy sources does NOT originally come from the Sun?

w) wind

x) Ocean thermal energy conversion

y) geothermal

z) hydroelectric

ANSWER: Y GEOTHERMAL

3. Short Answer: What is the name of the atmosphere layer of upwardly diminishing temperature situated above the stratosphere and topped by the mesopause?

ANSWER: MESOSPHERE

4. Multiple Choice: What percentage of the earth's atmosphere does O2 comprise?

w) 75%

x) 50%

y) 21%

z) 32%

ANSWER: Y -- 21%

5. Short Answer: What gas makes up the majority of our atmosphere?

ANSWER: NITROGEN

6. Multiple Choice: The tanning rays of the sun are called:

w) infrared rays

x) visible light

y) ultraviolet rays

z) gamma rays

ANSWER: Y -- ULTRAVIOLET RAYS

7. Multiple Choice: While many different gases are found in the atmosphere, a number do NOT

contribute significantly to solar heating of the atmosphere. Which TWO of the following gases do NOT absorb much heat?

w) carbon dioxide

x) nitrogen

y) water vapor

z) oxygen

ANSWER: X and Z -- NITROGEN and OXYGEN

8. Multiple Choice: Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities?

w) oxygen and hydrogen

x) ozone and methane

y) nitrous oxide and sulfur dioxide

z) methane and carbon dioxide

e) ozone and carbon monoxide

ANSWER: Z -- METHANE AND CARBON DIOXIDE

9. Short Answer: The ozone layer is located in which region of the atmosphere?

ANSWER: STRATOSPHERE

10. Multiple Choice: Certain substances are classified as water pollutants, others as air pollutants and still others as land pollutants. Which of the following pollutes all three parts of our environment?

w) fluorocarbons

x) smog

y) acid rain

z) ozone

ANSWER: Y -- ACID RAIN

11. Short Answer: What is the name of the phenomenon that causes an accumulation of heat in the lower atmosphere because of the absorption of long-wave radiation from the Earth's surface?

ANSWER: GREENHOUSE EFFECT

12. Multiple Choice: The Greenhouse Effect is caused primarily by which of the following processes?

w) blocking incoming short wave solar energy

x) absorbing incoming short wave solar energy

y) heating of the Earth's stratosphere

z) absorbing outgoing long wave radiation from the Earth

ANSWER: Z -- ABSORBING OUTGOING LONG WAVE RADIATION FROM THE

EARTH

13. Multiple Choice: Hematite is a primary ore of which of the following metals?

w) zinc

x) tungsten

y) iron

z) none of the above

ANSWER: Y -- IRON

14. Multiple Choice: Galena is a primary ore of which of the following metals?

w) zinc

x) tungsten

y) lead

z) silver

ANSWER: Y -- LEAD

15. Multiple Choice: Which of the following minerals is a source of copper?

w) Bauxite (pron: box-ite)

x) Hematite

y) Malachite

z) Galena

ANSWER: Y -- MALACHITE

16. Multiple Choice: Of the following four geologic periods, which is the most recent?

w) Devonian

x) Silurian

y) Permian

z) Jurassic

ANSWER: Z -- JURASSIC

Science Bowl Practice Questions Physics

1. Multiple Choice: For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the:

w) Lyman series

x) Balmer series

y) Paschen series

z) Pfund series

ANSWER: W -- LYMAN SERIES

2. Multiple Choice: Electric current may be expressed in which one of the following units?

w) coulombs/volt

x) joules/coulomb

y) coulombs/second

z) ohms/second

ANSWER: Y -- COULOMBS/SECOND

3. Short Answer: In the SI system of measure, what is the unit of capacitance?

ANSWER: FARAD

4. Multiple Choice: A Newton is equal to which of the following?

w) kilogram-meter per second

x) meter per second squared

y) kilogram-meter per second squared

z) kilogram per meter-second

ANSWER: Y -- KILOGRAM-METER PER SECOND SQUARED

5. Multiple Choice: Work is equal to which of the following?

w) the cross product of force and displacement.

x) the product of force times time

y) force divided by time

z) the dot product of force and displacement

ANSWER: Z -- THE DOT PRODUCT OF FORCE AND DISPLACEMENT

6. Multiple Choice: The work done by a friction force is:

w) always positive

x) always negative

y) always zero

z) either positive or negative depending upon the situation.

ANSWER: X -- ALWAYS NEGATIVE

7. Multiple Choice: As defined in physics, work is:

w) a scalar quantity

x) always a positive quantity

y) a vector quantity

z) always zero

ANSWER: W -- A SCALAR QUANTITY

8. Multiple Choice: In physics, a radian per second is a unit of:

w) angular displacement

x) angular velocity

y) angular acceleration

z) angular momentum.

ANSWER: X -- ANGULAR VELOCITY

9. Multiple Choice: If the resultant force acting on a body of constant mass is zero, the body's momentum

is:

w) increasing

x) decreasing

y) always zero

z) constant

ANSWER: Z CONSTANT

10. Short Answer: What is the name of the first American physicist to win two Nobel prizes?

ANSWER: (JOHN) BARDEEN

11. Multiple Choice: Which of the following scientists is responsible for the exclusion principle which states that two objects may NOT occupy the same space at the same time? Was it:

w) Heisenberg

x) Bohr

y) Teller

z) Pauli

ANSWER: Z -- PAULI

12. Short Answer: Who shared the Nobel Prize in Physics in 1909 with Guglielmo Marconi for his

contribution to the development of wireless telegraphy?

ANSWER: (CARL FERDINAND) BRAUN

13. Short Answer: Who first theoretically predicted the existence of the positron, a positively charged

electron? He received the Nobel Prize in Physics in 1933.

ANSWER: (PAUL ADRIEN MAURICE) DIRAC

14. Short Answer: Name the female physicist who received the Nobel Prize in 1963 for her discovery

concerning the shell structure of the nucleus.

ANSWER: (MARIA GOEPPERT) MAYER

15. Multiple Choice: The force acting between two point charges can be computed using which of the

following laws?

w) Ohm's Law

x) Ampere's Law

y) Coulomb's Law

z) Newton's Second Law.

ANSWER: Y -- COULOMB'S LAW

16. Multiple Choice: Induced electric currents can be explained using which of the following laws?

w) Gauss's Law

x) Faraday's Law

y) Ohm's Law

z) Ampere's Law

ANSWER: X -- FARADAY'S LAW

17. Multiple Choice: For a negative point charge, the electric field vectors:

w) circle the charge

x) point radially in toward the charge

y) point radially away from the charge

z) cross at infinity

ANSWER: X -- POINT RADIALLY IN TOWARD THE CHARGE

18. Multiple Choice: For an infinite sheet of positive charge, the electric field lines:

w) run parallel to the sheet of charge

x) are perpendicular to the sheet of charge and point in toward the sheet

y) are perpendicular to the sheet of charge and point away from the sheet

z) fall off as one over r squared

ANSWER: Y -- ARE PERPENDICULAR TO THE SHEET OF CHARGE AND POINT AWAY

19. Short Answer: In Bohr's theory of the atom, what force was responsible for holding the electrons in their orbit?

ANSWER: COULOMB FORCE or THE FORCE OF ATTRACTION BETWEEN THE PROTON

(NUCLEUS) AND THE ELECTRON

20. Multiple Choice: Whose principle or law states that each point on a wavefront may be considered a

new wave source? Is it:

w) Snell's Law

x) Huygen's Principle

y) Young's Law

z) Hertz's Law.

ANSWER: X -- HUYGEN'S PRINCIPLE

21. Multiple Choice: The wave nature of light is demonstrated by which of the following?

w) the photoelectric effect

x) color

y) the speed of light

z) diffraction

ANSWER: Z -- DIFFRACTION

22. Multiple Choice: The collision between a photon and a free electron was first explained by which of the following scientists?

w) Einstein

x) Heisenberg

y) Compton

z) Bohr

ANSWER: Y COMPTON

23. Short Answer: Besides solid, liquid, and gas, what is the fourth form of matter?

ANSWER: PLASMA

24. Short Answer: What is 25,000 miles per hour on earth, and 5,300 miles per hour on the Moon?

ANSWER: ESCAPE VELOCITY

25. Short Answer: In Einstein's universe, what is the fourth dimension?

ANSWER: TIME

26. Multiple Choice: The Tesla and the Gauss are units of measure of:

w) conductance

x) magnetic field strength

y) magnetic flux

z) electrical current

ANSWER: X -- MAGNETIC FIELD STRENGTH

27. Short Answer: Shockley, Brattain and Bardeen won a Nobel prize for what small invention?

ANSWER: TRANSISTOR

28. Multiple Choice: Which of the following colors of visible light has the longest wavelength? Is it:

w) violet

x) green

y) yellow

z) red

ANSWER: Z RED

29. Multiple Choice: The value of G, the universal gravitational constant, was measured experimentally by:

w) Newton

x) Cavendish

y) Copernicus

z) Kepler

ANSWER: X -- CAVENDISH

30. Multiple Choice: The SI unit of pressure is the:

w) Torr

x) dyne per centimeter squared

y) atmosphere

z) pascal

ANSWER: Z PASCAL

31. Multiple Choice: An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of:

w) momentum but not energy

x) neither momentum nor energy

y) energy but not momentum

z) both momentum and energy

ANSWER: Z -- BOTH MOMENTUM AND ENERGY

32. Multiple Choice: In the sun, helium is produced from hydrogen by:

w) radioactive decay

x) disintegration

y) fission

z) fusion

ANSWER: Z FUSION

33. Multiple Choice: The idea that electrons revolved in orbits around the nucleus of an atom without radiating energy away from the atom was postulated by:

w) Thompson

x) Bohr

y) Rutherford

z) Einstein

ANSWER: X BOHR

General Science1

1. Which of the following is the lightest metal ?

(A) Mercury

(B) Silver

(C) Lithium

(D) Lead

2. The most important ore of Aluminium is

(A) Bauxite

(B) Calamine

(C) Calcite

(D) Galena

3. The element present in the largest amount in rocks and minerals is

(A) Carbon

(B) Silicon

(C) Hydrogen

(D) Aluminium

4. An alloy used in making heating elements for electric heating devices is

(A) Solder

(B) Alloysteel

(C) Nichrome

(D) German Silver

5. German Silver is an alloy of

(A) Copper, Silver & Nickel

(B) Silver, Copper & Aluminium

(C) Zinc, Copper & Nickel

(D) Silver, Zinc & Nickel

6. Air is a/an

(A) Compound

(B) Element

(C) Mixture

(D) Electrolyte

7. Which of the following is the best conductor of Electricity ?

(A) Ordinary water

(B) Sea water

(C) Boiled water

(D) Distilled water

8. Balloons are filled with

(A) Helium

(B) Oxygen

(C) Nitrogen

(D) Argon

9. The charcoal used to decolourise raw sugar is

(A) Animal charcoal

(B) Sugar charcoal

(C) Cocoanut charcoal

(D) Wood charcoal

10. The most abundant metal in the earths crust is

(A) Zinc

(B) Copper

(C) Aluminium

(D) Iron

11. The gas used to extinguish fire is

(A) Neon

(B) Nitrogen

(C) Carbon dioxide

(D) Carbon Monoxide

12. In which of the following activities Silicon Carbide is used ?

(A) Making cement and glass

(B) Disinfecting water and ponds

(C) Making castes for statues

(D) Cutting very hard substances

13. The element common to all acids is

(A) Oxygen

(B) Hydrogen

(C) Nitrogen

(D) Sulphur

14. Gobar gas contains mainly

(A) Methane

(B) Carbon dioxide

(C) Butane

(D) Carbon Monoxide

15. The most malleable metal is

(A) Silver

(B) Gold

(C) Aluminium

(D) Sodium

16. Tetraethyl lead is used as

(A) Mosquito repellent

(B) Pain Killer

(C) Fire extinguisher

(D) Petrol additive

17. Which of the following is used in beauty parlours for hair setting ?

(A) Phosphorus

(B) Sulphur

(C) Chlorine

(D) Silicon

18. Which of the following is a non-metal that remains liquid in room temperature ?

(A) Bromine

(B) Chlorine

(C) Helium

(D) Phosphorus

19. From which mineral is radium obtained

(A) Limestone

(B) Haematitie

(C) Pitchblende

(D) Rutile

20. What is laughing gas ?

(A) Carbon dioxide

(B) Sulphur dioxide

(C) Nitrogen Dioxide

(D) Nitrous oxide

21. Which of the following is used as a material for making protective windows in space probes ?

(A) Steel

(B) Graphite

(C) Tungsten

(D) Diamond

22. Which form of phosphorus is used in safety metals?

(A) Red Phosphorus

(B) White Phosphorus

(C) Yellow Phosphorus

(D) Black Phosphorous

23. Stainless steel is an alloy of

(A) Iron, Carbon and Nickel

(B) Iron and Manganese

(C) Iron, Chromium and Zinc

(D) Iron, Chromium and Nickel

24. Which of the following is not correctly matched ?

(A) Galena : Lead Sulphide

(B) Green vitriol : Copper sulphate

(C) Plaster of Paris : Calcium sulphate

(D) Calomel : Mercurous Chloride

25. Which of the following metals forms an amalgum with other metals ?

(A) Lead

(B) Tin

(C) Zinc

(D) Mercury

Answers:

1. (C) 2. (A) 3. (B) 4. (C) 5. (C) 6. (C)

7. (B) 8. (A) 9. (D) 10. (C) 11. (C) 12. (D)

13. (B) 14. (A) 15. (B) 16. (D) 17.(B) 18. (A)

19. (C) 20. (D) 21. (D) 22. (A) 23. (D) 24. (B) 25. (D)

General Science2

1. Parmanent hardness of water may be removed by the addition of

(A) Alum

(B) Sodium Carbonate

(C) Lime

(D) Potassium Permanganate

2. Potassium nitrate is used in

(A) Salt

(B) Glass

(C) Fertiliser

(D) Medicine

3. In which type of rocks are metals like Gold and Copper mostly found ?

(A) Old igneous

(B) Old sedimentary

(C) Old metamorphic

(D) New metamorphic

4. Which of the following gases is lighter than air ?

(A) Carbon dioxide

(B) Oxygen

(C) Ammonia

(D) Chlorine

5. Which of the following is used as lubricant ?

(A) Graphite

(B) Silica

(C) Diamond

(D) Iron Oxide

6. The purest form of iron is

(A) Steel

(B) Pig iron

(C) Cast iron

(D) Wrought iron

7. The percentage of carbon is the least in

(A) Grey cast iron

(B) Wrought iron

(C) White cast iron

(D) Steel

8. The colour of Emerald is

(A) Violet

(B) Yellow

(C) Deep Green

(D) Prussian Blue

9. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of

(A) Nitrates

(B) Zeolites

(C) Sulphonates

(D) None of these

10. Rust is

(A) A mixture of Fe2O3 and Fe(OH)2

(B) A mixture of FeO and Fe(OH)2

(C) FeO only

(D) A mixture of Fe2O3, 3H2O and FeO

11. Liquefied Petroleum gas (LPG) consists of mainly

(A) Methane, Ethane and Hexane

(B) Ethane, Hexane and Nonane

(C) Methane, Butane and Propane

(D) Methane, Hexane and Nonane

12. The metal that is present in Photo Films is

(A) Mercury

(B) Platinum

(C) Magnesium

(D) Silver

13. Which of the following is in liquid form at room temperature ?

(A) Cerium

(B) Sodium

(C) Francium

(D) Lithium

14. Soda water contains

(A) Nitrous acid

(B) Carbonic acid

(C) Carbon dioxide

(D) Sulphuric acid

15. Which of the following is basis of the modern periodic table ?

(A) Atomic mass

(B) Atomic number

(C) Atomic size

(D) Atomic volume

16. Of the following metals, which one pollutes the air of a big city ?

(A) Copper

(B) Cadmium

(C) Lead

(D) Chromium

17. Brass is an alloy of

(A) Nickel and Copper

(B) Copper and Silver

(C) Nickel and Zinc

(D) Zinc and Copper

18. The element required for Solar energy conversion

(A) Beryllium

(B) Silicon

(C) Tantalum

(D) Ultra pure carbon

19. Monazite is an ore of

(A) Sodium

(B) Titanium

(C) Thorium

(D) Zirconium

20. Potassium Permanganate is used for purifying drinking water, because

(A) It dissolves the impurities of water

(B) It is a sterilizing agent

(C) It is an oxidising agent

(D) It is a reducing agent.

21. The presence of which of the following salts in water causes corrosion in steam boilers ?

(A) Sodium Chloride

(B) Magnesium Chloride

(C) Calcium bicarbonate

(D) Potassium bicarbonate

22. Water is a good solvent of ionic salts because

(A) It has no colour

(B) It has a boiling point

(C) It has a high dipole moment

(D) It has a high specific heat

23. The hardest substance available in earth is

(A) Platinum

(B) Silicon

(C) Diamond

(D) Gold

24. Which of the following is the best conductor of electricity ?

(A) Zinc

(B) Copper

(C) Gold

(D) Silver

25. The ratio of pure gold in 18 carat gold is

(A) 60%

(B) 75%

(C) 80%

(D) 100%

Answers:

1. (B) 2. (B) 3. (A) 4. (C) 5. (A)

6. (D) 7. (D)8. (C) 9. (B) 10. (D)

11. (C) 12. (D)13. (C) 14. (C) 15. (B)

16. (C) 17. (D) 18. (B) 19. (C) 20. (C)

21. (B) 22. (C) 23. (C) 24. (D) 25. (B)

General Science3

1. Which of the following is not an ore of Aluminium?

(A) Felsper

(B) Bauxite

(C) Cryolite

(D) Azurite

2. Most soluble in water is

(A) Camphor

(B) Sugar

(C) Sulphur

(D) Common Salt

3. Bromine is

(A) colourless gas insoluble in water

(B) A highly inflammable gas

(C) A Black solid.

(D) A red liquid.

4. The metal used in storage batteries

(A) Iron

(B) Copper

(C) Lead

(D) Zinc

5. Water has maximum density at

(A) 4C

(B) 0C

(C) 4C

(D) 100C

6. The chemical name of Urea is

(A) Aneurin

(B) Chloroetane

(C) Carbamide

(D) None of these

7. Permanent hardness of water can be removed by adding

(A) Potassium Permanganate

(B) Chlorine

(C) Bleaching Powder

(D) Washing Soda

8. The formula of Plaster of Paris is

(A) CaSO4

(B) CaSO4, 2H2O

(C) 2CaSO4, 4H2O

(D) 2CaSO4, H2O

9. Which of the following substance is a bad conductor of electricity but a good conductor of heat?

(A) Asbestos

(B) Celluloid

(C) Purspecks

(D) Mica

10. Carborandum is

(A) Silicon Dioxide

(B) Silicon Carbide

(C) Silicon Nitride

(D) Silicon Phosphide

11. Which of the following is the best conductor of electricity ?

(A) Copper

(B) Mica

(C) Zinc

(D) Silver

12. Washing soda is the common name of

(A) Calcium Carbonate

(B) Calcium Bi-Carbonate

(C) Sodium Carbonate

(D) Sodium Bi-Carbonate

13. The filament of electric bulb is made of

(A) Iron

(B) Nichrome

(C) Tungsten

(D) Graphite

14. Bleaching powder is made from

(A) Sulphur dioxide and gypsum

(B) Chlorine and Charcoal

(C) Soda ash and lime

(D) Lime and Chlorine

15. The two elements that are frequently used for making transistors are

(A) Boron and Aluminium

(B) Silicon and Germenium

(C) Iridium and Tungsten

(D) Niobium and Columbium

16. Which of the following gas is not known as green house gas ?

(A) Methane

(B) Carbon dioxide

(C) Nitrous oxide

(D) CFC

17. Which of the following is not a neutral oxide ?

(A) Carbon Monoxide

(B) Sulphur Dioxide

(C) Water

(D) Nitric Oxide

18. Which of the following is used in making smoke bombs ?

(A) Sulphur

(B) Phosphorus

(C) Hydrogen

(D) Carbon

19. Caustic Soda is

(A) Nacl

(B) Na2CO3

(C) NaOH

(D) NaHCO3

20. Chemical formula of Water glass is

(A) Na2SiO3

(B) Al2O3

(C) NaAlO2

(D) CaSiO3

21. Which of the following is not a bleaching agent?

(A) Sulpher di-oxide

(B) Carbon di-oxide

(C) Sodium hypochlorite

(D) Chlorine

22. The gas usually filled in electric bulb is

(A) Hydrogen

(B) Oxygen

(C) Nitrogen

(D) Carbon di-oxide

23. Heavy water is

(A) Tritium oxide

(B) Deuterium oxide

(C) Rain water

(D) Water at 4C

24. The gases used in different types of welding would include

(A) Oxygen & Hydrogen

(B) Oxygen, acetylene & argon

(C) Oxygen & acetylene

(D) Oxygen, hydrogen & nitrogen

25. Which of the following alloys is used for making magnets ?

(A) Duralumin

(B) Stainless Steel

(C) Alnico

(D) Magnelium

Answers:

1. (D) 2. (B) 3. (D) 4. (C) 5. (A)

6. (C) 7. (D) 8. (D) 9. (D) 10. (B)

11. (D) 12. (C)13. (C) 14. (D) 15. (B)

16. (C) 17. (B) 18. (B) 19. (C) 20. (A)

21. (B) 22. (C) 23. (B) 24. (C) 25. (C)

General Science4

1. Cow milk is a rich source of

(A) Vitamin A

(B) Vitamin B1

(C) Vitamin C

(D) Vitamin D

2. The element found in the surface of the Moon is

(A) Tin

(B) Tungsten

(C) Tantalum

(D) Titanium

3. The average salinity of sea water is

(A) 2%

(B) 3%

(C) 2.5%

(D) 3.5%

4. Which of the following is the most stable element?

(A) Uranium

(B) Hydrogen

(C) Oxygen

(D) Lead

5. Find the odd one ?

(A) Marble

(B) Chalk

(C) Lime Stone

(D) Slaked Lime

6. Diamond is harder than graphite because of

(A) Difference of layers of atoms

(B) Tetrahedral structure of diamonds

(C) Difference of crystaline structures

(D) None of these

7. A super conductor is characterised by

(A) Zero permeability

(B) Low permeability

(C) High permeability

(D) Infinite permeability

8. Of the various forms of carbon, which one is used for absorption purpose?

(A) Diamond

(B) Graphite

(C) Coke

(D) Wood Charcoal

9. The main constituents of Pearl are

(A) Calcium Carbonate, Magnesium Carbonate

(B) Calcium oxide, Ammonium Chloride

(C) Argonite , Chonchiolin

(D) Ammonium Sulphate, Sodium Carbonate

10. An element that does not occur in nature but can be produced artificially is

(A) Thorium

(B) Radium

(C) Plutonium

(D) Uranium

11. The inert gas which is substituted for nitrogen in the air, used by deep sea drivers for breathing is

(A) Helium

(B) Argon

(C) Krypton

(D) Xenon

12. The group of metals Fe, Co, Ni may be best called as

(A) Alkali metals

(B) Rare metals

(C) Main group metals

(D) Transition metals

13. Which of the following characters is not shown by hydrogen

(A) It burns in air to form water

(B) It supports combustion

(C) It combines with almost all metals forming hydrides

(D) It readily combines with fluorine and chlorine

14. Which of the following elements is obtained from sea weeds ?

(A) Argon

(B) Sulphur

(C) Vanadium

(D) Iodine

15. The metallic constituents of hard water are

(A) Magnesium, Calcium and tin

(B) Iron, tin and calcium

(C) Calcium, magnesium and iron

(D) Magnesium, tin and iron

16. The property of a substance to absorb moisture from the air on exposure is called

(A) Osmosis

(B) Desiccation

(C) Efflorescence

(D) Deliquescene

17. Brass gets discoloured in air due to the presence of which gas in air

(A) Carbon dioxide

(B) Oxygen

(C) Hydrogen Sulphide

(D) Nitrogen

18. Quartz crystals normally used in quartz clocks etc. is chemically

(A) Sodium Silicate

(B) Silicon dioxide

(C) Germenium dioxide

(D) A mixture of (B) & (C)

19. Bell Metal is an alloy of

(A) Brass and Nickel

(B) Zinc and Copper

(C) Tin and Copper

(D) Nickel and Copper

20. The high temperature superconductors are

(A) Metal alloys

(B) Ceramic oxides

(C) Inorganic polymers

(D) Pure rare earth metals

21. The ingredients of Gun metal are

(A) Iron, tin

(B) Copper, tin

(C) Iron, brass, tin

(D) Iron, zinc, titanium

22. The gas usually causing explosions in coal mines is

(A) Hydrogen

(B) Carbon monoxide

(C) Air

(D) Methane

23. Cotton fibers are made of

(A) cellulose

(B) starch

(C) proteins

(D) fats

24. Which of the following ores does not contain iron?

(A) Haematite

(B) Magnetite

(C) Limonite

(D) Cassiterite

25. Nuclear fission is caused by the impact of

(A) Proton

(B) Electron

(C) Neutron

(D) (A) & (b)

Answers:

1. (B) 2. (D) 3. (D) 4. (D) 5. (D)

6. (C) 7. (A) 8. (D) 9. (A) 10. (C)

11. (A) 12. (D)13. (B) 14. (D) 15. (C)

16. (D) 17. (C) 18. (B) 19. (C) 20. (B)

21. (B) 22. (D) 23. (A) 24. (D) 25. (C)

General Science5

1. Which is a good nuclear fuel ?

(A) Uranium 238

(B) Neptunium 239

(C) Thorium 236

(D) Plutonium - 236

2. Long distance photography is facilitated by

(A) Visible light

(B) X-rays

(C) Infra Red rays

(D) Ultra violet rays

3. Which radioactive pollutant has recently drawn the attention of the public due to its occurance in the building materials ?

(A) Radium

(B) Radon

(C) Thorium

(D) Plutonium

4. In an atomic explosion enormous energy is released which is due to the

(A) Conversions of neutrons into protons

(B) Conversion of chemical energy into nuclear energy

(C) Conversion of mechanical energy into nuclear energy

(D) Conversion of mass into energy

5. Which of the following is used as a coolant in nuclear reactors ?

(A) Heavy water

(B) Cadmium

(C) Liquid sodium

(D) Graphite

6. The isotope of Uranium capable of sustaining chain reaction is

(A) U 235

(B) U 238

(C) U 239

(D) None of these

7. Radioactive disintegration of Uranium ultimately results in formation of

(A) Radium

(B) Thorium

(C) Polonium

(D) Lead

8. Atom bomb is made on the basis of

(A) Nuclear fusion

(B) Nuclear fission

(C) Both (A) & (B)

(D) None of these

9. Which of the following has least penetrating power?

(A) Alpha particles

(B) Beta particles

(C) Gamma particles

(D) All have same power

10. What is increasing order of the wave lengths of the following colours

1. Orange

2. Indigo

3. Yellow

4. Violet

(A) 1, 2, 3, 4

(B) 3, 4, 1, 2

(C) 4, 3, 2, 1

(D) 4, 2, 3, 1

11. Atoms are composed of

(A) Electrons only

(B) Protons only

(C) Electrons & Protons

(D) Electrons & Nuclei

12. The age of most ancient geological formation is estimated by

(A) Potassium-Argon method

(B) Ra-Si method

(C) C14 method

(D) Uranium-lead method

13. Which of the following is used as a moderator in nuclear reactor ?

(A) Ordinary water

(B) Radium

(C) Thorium

(D) Graphite

14. Isotopes are separated by

(A) Filtration

(B) Sublimation

(C) Distillation

(D) Crystalization

15. Who suggested that the most of the mass of atom is located in nucleus ?

(A) Bohr

(B) Thomson

(C) Rutherford

(D) Avogadro

16. Meson particles are found in

(A) R-rays

(B) X-rays

(C) Laser beam

(D) Cosmic rays

17. An atom of an element with mass number 23 and atomic number 11 will have

(A) 11 neutrons, 12 protons and 11 electrons

(B) 11 protons, 12 neutrons and 11 electrons

(C) 11 protons, 12 electrons and 11 neutrons

(D) 23 protons and 11 electrons

18. The location and energy of an electron in an atom can be specified by

(A) Atomic mass

(B) Atomic number

(C) Quantum numbers

(D) None of these

19. Old-written material, which cannot be read easily can be read by

(A) Cosmic Rays

(B) Ultraviolet rays

(C) Infra Red rays

(D) None of these

20. In an atomic nucleus, neutrons and protons are held together by

(A) Gravitational forces

(B) Magnetic forces

(C) Exchange forces

(D) Coulombic forces

21. Which of the following elements is non-radioactive?

(A) Uranium

(B) Thorium

(C) Plutonium

(D) Zirconium

22. According to Daltons atomic theory the smallest particle which can exist independently is

(A) An atom

(B) A molecule

(C) A cation

(D) An anion

23. The recent atomic weight scale is based on

(A) 1H1

(B) 1H2

(C) 6C12

(D) 8O16

24. The neutral atoms two isotopes differ in the number of

(A) Electron shells

(B) Protons

(C) Valence electrons

(D) Neutrons

25. Optical fibres are mainly used in

(A) Communication

(B) Weaving

(C) Musical Instruments

(D) Food Industry

Answers:

1. (C) 2. (C) 3. (C) 4. (D) 5. (C)

6. (A) 7. (D) 8. (B) 9. (A) 10. (D)

11. (D) 12. (C)13. (D) 14. (C) 15. (C)

16. (D) 17. (B) 18. (C) 19. (C) 20. (C)

21. (D) 22. (A) 23. (C) 24. (D) 25. (A)

General Science6

1. The first synthetic fibre made by man was

(A) Rayon

(B) Nylon

(C) Polyester

(D) Terycott

2. Which variety of glass is heat resistant ?

(A) Hard glass

(B) Flint glass

(C) Pyrex glass

(D) Bottle glass

3. Which of the following is used for removing air bubbles from glass during its manufacture ?

(A) Fledspar

(B) Arsenic oxide

(C) Potassium Carbonate

(D) Soda Ash

4. What are soaps ?

(A) Salts of silicates

(B) Ester of heavy fatty acids

(C) Sodium or potassium salts of heavier fatty acids

(D) Mixture of glycerol and alcohol

5. Which of the following is used in making artificial sweetener saccharine ?

(A) Benzene

(B) Toluene

(C) Phenol

(D) Aniline

6. Rayon is chemically

(A) Glucose

(B) Amylase

(C) Cellulose

(D) Peptin

7. Which of following is used as a filter in rubber tyres?

(A) Graphite

(B) Coal

(C) Coke

(D) Carbon Black

8. In vulcanization, natural rubber is heated with

(A) Carbon

(B) Sulphur

(C) Silicon

(D) Phosphorus

9. Which type of fire extinguisher is used for petroleum fire ?

(A) Foam type

(B) Soda acid type

(C) Powder type

(D) None of these

10. Which is/ are the important raw materials in cement industry ?

(A) Limestone

(B) Gypsum & Clay

(C) Clay

(D) Limestone & Clay

11. Which of the following is the petroleum wax ?

(A) Bees wax

(B) Carnauba wax

(C) Paraffin wax

(D) Jojoba wax

12. Which of the following fibres is generally preferred for making gauze and lint ?

(A) Cotton

(B) Rayon

(C) Nylon

(D) Terylene

13. Rubber is coagulated from latex by adding

(A) Hydrochloric acid

(B) Acetic acid

(C) Sulphuric acid

(D) Carbonic acid

14. Paper is manufactured by

(A) Wood and resin

(B) Wood, Sodium and Bleaching powder

(C) Wood and bleaching powder

(D) Wood, Calcium, hydrogen sulphate and resin

15. Which synthetic fibre is known as artificial silk ?

(A) Cotton

(B) Rayon

(C) Terylene

(D) Nylon

16. Deep blue colour is imparted to glass by the presence of

(A) Iron oxide

(B) Cupric oxide

(C) Nickel oxide

(D) Cobalt oxide

17. The combustible material at the tip of a safety match stick is

(A) Sulphur

(B) Manganese dioxide

(C) Phosphorus

(D) Antimony sulphide

18. Which of the following roofs provide better protection against fire ?

(A) Cement slab

(B) Asbestos sheet

(C) Reinforced concrete

(D) None of these

19. The material used for bleaching paper pulp is

(A) Chlorine

(B) Caustic soda

(C) Sodium Hypochlorite

(D) Lime

20. Which of the following is a protein ?

(A) Wool

(B) Starch

(C) Natural rubber

(D) Cellulose

21. Soap is a mixture of sodium or potassium salts of

(A) Monocarboxylic acid

(B) Glycerols

(C) Dicarboxylic acid

(D) Tricarboxylic acid

22. Which of the following material is used to prepare blue-black ink ?

(A) Gallic acid

(B) Tannic acid

(C) Ferrous sulphate

(D) All of these

23. The type of glass used in making prisms and lenses is

(A) Soft glass

(B) Pyrex glass

(C) Jena glass

(D) Flint glass

24. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous glass called

(A) Carbon Monoxide

(B) Phosphine

(C) Phosgene

(D) None of these

25. Which of the following is commonly called a polyamide ?

(A) Rayon

(B) Orion

(C) Terylene

(D) Nylon

Answers:

1. (B) 2. (C) 3. (B) 4. (C) 5. (B)

6. (C) 7. (D) 8. (B) 9. (C) 10. (D)

11. (C) 12. (B)13. (B) 14. (D) 15. (B)

16. (D) 17. (D) 18. (B) 19. (C) 20. (C)

21. (A) 22. (D) 23. (D) 24. (D) 25. (D)

General Science7

1. The major ingredient of leather is

(A) Carbohydrate

(B) Collagen

(C) Polymer

(D) Nucleic acid

2. Glass is made from the mixture of

(A) Quartz and mica

(B) Sand and salt

(C) Sand and silicates

(D) None of these

3. Epoxy resins is used as

(A) Moth repellents

(B) Insecticides

(C) Detergents

(D) Adhesives

4. Polythene is industrially prepared by the polymerization of

(A) Methane

(B) Styrene

(C) Acetylene

(D) Ethylene

5. A mixture of water and alcohol can be separated by

(A) Filtration

(B) Evaporation

(C) Distillation

(D) Decantation

6. A substance which changes readily into vapour without heating is called

(A) Efflorescent

(B) Synthetic

(C) Volatile

(D) Effervescent

7. In which following processes light energy is converted into chemical energy ?

(A) Respiration

(B) Fermentation

(C) Photosynthesis

(D) Photorespiration

8. Cooking oil can be converted into vegetables ghee by the process of

(A) Oxidation

(B) Hydrogenation

(C) Distillation

(D) Crystallisation

9. Photosynthesis is

(A) An exothermic process

(B) An endothermic process

(C) A neutral process

(D) A thermostatic process

10. Which of the following substances exhibit the property of sublimation ?

(A) Ice

(B) Wax

(C) Camphor

(D) Ethyl Alcohol

11. Combustion is the process in which

(A) Heat is produced

(B) Light is produced

(C) Heat and Light is produced

(D) None of these

12. The chemical used as a fixer in photography is

(A) Borax

(B) Sodium thiosulphate

(C) Sodium Sulphate

(D) Ammonium persulphate

13. A mixture of iron filings and sand can be separated by

(A) Heating

(B) Sublimation

(C) Hand picking

(D) Magnetic Separation

14. In which of the following process, Vanadium Pentoxide is used as a catalyst ?

(A) Contact process

(B) Haber process

(C) Solvary process

(D) None of these

15. The rate of chemical reaction does not depend on

(A) Concentration

(B) Catalyst

(C) Temperature

(D) Pressure

16. Which of the following metals can displace hydrogen from dilute acids ?

(A) Zinc

(B) Gold

(C) Copper

(D) Silver

17. Reaction of alcohol, with carboxylic acid is known as

(A) Substitution reaction

(B) Addition reaction

(C) Esterification

(D) Hydrogenation

18. Saponification involves the hydrolysis of fats and oils by

(A) Water

(B) Washing soda

(C) Stearic acid

(D) Caustic acid

19. Which of the following gases is obtained by the reaction of water with Calcium Carbide ?

(A) Acetylene

(B) Ethylene

(C) Methane

(D) Water gas

20. The gas liberated during the reaction of copper with dilute nitric acid is

(A) NO2

(B) N2O5

(C) O2

(D) NO

21. Which of following substances undergoes chemical change on heating ?

(A) Sodium Chloride

(B) Silica

(C) Lead Nitrate

(D) Platinum wire

22. Water is neither acidic nor alkaline because

(A) it cannot accept or donate protons

(B) it boils at high temperature

(C) it can dissociate into equal number of hydrogen ions

(D) it cannot donate or accept electrons

23. PVC is obtained by the polymerisation of

(A) Propene

(B) Vinyl Chloride

(C) Styrene

(D) Acetylene

24. Which of the following metals can displace zinc from a solution of zinc sulphate ?

(A) Lead

(B) Magnetism

(C) Iron

(D) Mercury

25. Water gas is prepared by passing

(A) Steam over white hot coke

(B) Air over red hot coke

(C) Methane over red hot coke

(D) Steam over heated sulphur

Answers:

1. (B) 2. (C) 3. (D) 4. (D) 5. (C)

6. (C) 7. (C) 8. (B) 9. (B) 10. (C)

11. (C) 12. (B)13. (D) 14. (A) 15. (D)

16. (A)17. (C) 18. (D) 19. (A) 20. (D)

21. (C) 22. (C) 23. (B) 24. (B) 25. (